The validation of a control strategy for biogas upgrading via light-driven CO₂ consumption by microalgae and H₂S oxidation by oxidizing bacteria using the oxygen photosynthetically generated was performed in a semi-industrial scale (9.6 m³) photobioreactor. The control system was able to support CO₂ concentrations lower than 2% with O₂ contents ≤ 1% regardless of the pH in the cultivation broth (ranging from 9.05 to 9.50). Moreover, the control system was efficient to cope with variations in biogas flowrate from 143 to 420 L h^-1, resulting in a biomethane composition of CO₂ < 2.4%, CH₄ >95.5%, O₂ <1% and no H₂S. Despite the poor robustness of this technology against failures in biogas and liquid supply (CH₄ concentration of 67.5 and 70.9% after 2 h of biogas or liquid stoppage, respectively), the control system was capable of restoring biomethane quality in less than 2 h when biogas or liquid supply was resumed.

在半工业规模（9.6 m ³）光生物反应器中，通过微藻类光驱动的CO ₂消耗和通过使用光合作用产生的氧气氧化细菌来氧化H ₂ S来进行沼气升级控制策略的验证。不管培养液中的pH值如何（在9.05至9.50之间），控制系统都能够支持低于2％的CO ₂浓度，而O ₂含量≤1％。而且，该控制系统有效地应对了沼气流量从143 L到420 L h ^-1的变化，从而导致了生物气的CO ₂ <2.4％，CH ₄ > 95.5％，O _2组成。<1％和不包括H ₂ S.尽管这种技术的鲁棒性差免遭失败沼气和液体供给（CH ₄浓度的67.5和分别沼气或液体停止时，2小时后70.9％），该控制系统是能够恢复沼气或液体供应后不到2小时即可恢复沼气质量。